An MCCB (Molded Case Circuit Breaker) is an electromechanical device that protects an electrical circuit from overcurrent, which can be caused by overload or short circuit. Its function is to interrupt current flow after a fault is detected. Unlike miniature circuit breakers (MCBs), MCCBs are typically used for higher current ratings and can be adjustable, allowing settings to be tailored for specific applications. They are commonly used in industrial and commercial settings for the protection of distribution circuits and large equipment.
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